Experiments of this kind ___in both the U．S and Europe well before the Second World War

She won’t be able to come next week, because she _________ herself in Mount Tai then.

Mr. Li arrived at the Wuguang train station twenty minutes ago, but the train to Guangzhou ____________ yet.

 —What do you think of his speech at the court?—Er..., sorry, I ________ about something else.

Shakespeare’s play Hamlet ______ into at least ten different films over the past years. 

By the time you have finished reading this book, your meal ______ cold.

I ran across David while walking along the street yesterday. I ________ him for three years.

I will go to the seaside for a holiday with my family as soon as I ______ what I am doing.

---Oh, it’s you! I ______ you.--- I’ve just had my hair cut.

Great Changes ________in Shanghai since 2000.

—Peter, where did you guys go for the summer vacation?—We ____ busy with our work for months, so we went to the beach to relax ourselves.

--- So what is the procedure? --- All the applicants ______ before a final decision is made by the authority. 

My friend, Tom had just lost his job when, at the precise moment, his girlfriend ______ up with him. She was rubbing salt into his wound.

I had wanted to help you last night but I couldn't spare any time, for I＿＿＿a composition which I have to hand in this morning.

— Did you see the manager in his office?—Yes, he ______ by the journalist from Chengdu Evening.

The computers made by our company sell best, but several years ago no one could have imagined the role in the markets that they ________. 

Some modern teaching equipment as well as hundreds of computers ________to ten Hope Schools in South China

My last job lacked variety; I __________ the same things all the time.

My parents have promised to come to see me before I _____ for Africa.

It was the second time we _____ in holding such important parties.